After applying scratch-off ink printing on the material surface, it can be scraped off with a coin or other hard materials. Usually,...

Table of Contents Invisible Fluorescent Ink Infrared Ink Photosensitive Ink Glow-in-the-Dark Ink Thermochromic Ink Metal Reactive Ink...

Optical Variable Ink (OVI) can be seen at different angles for different ink colors. The Optical Variable Inks have their unique features...